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10002020000000 = 2857771443
BaseRepresentation
bin1001000110001100011011…
…0110010110000100000000
31022102011221222012212220012
42101203012312112010000
52302333114110000000
633134510424404052
72051423244145160
oct221430666260400
938364858185805
1010002020000000
1132069185a0a06
121156560316628
135772567b5cb2
142681595125a0
15125297456735
hex918c6d96100

10002020000000 has 288 divisors, whose sum is σ = 28521711359232. Its totient is φ = 3429216000000.

The previous prime is 10002019999987. The next prime is 10002020000029. The reversal of 10002020000000 is 2020001.

It is a Harshad number since it is a multiple of its sum of digits (5).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 139964279 + ... + 140035721.

Almost surely, 210002020000000 is an apocalyptic number.

10002020000000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10002020000000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14260855679616).

10002020000000 is an abundant number, since it is smaller than the sum of its proper divisors (18519691359232).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10002020000000 is an frugal number, since it uses more digits than its factorization.

10002020000000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71501 (or 71457 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 5.

Adding to 10002020000000 its reverse (2020001), we get a palindrome (10002022020001).

The spelling of 10002020000000 in words is "ten trillion, two billion, twenty million", and thus it is an aban number and an uban number.